Coherent stacking of picosecond laser pulses in a high-Q optical cavity for accelerator applications

• Дата: 2007
• Автори: Androsov, V.P., Karnaukhov, I.M., Telegin, Y.N.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2007
• Назва видання: Вопросы атомной науки и техники
• Теми: Теория и техника ускорения частиц
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/110567
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Coherent stacking of picosecond laser pulses in a high-Q optical cavity for accelerator applications / V.P. Androsov, I.M. Karnaukhov, Y.N. Telegin // Вопросы атомной науки и техники. — 2007. — № 5. — С. 141-146. — Бібліогр.: 9 назв. — англ.

We have performed the harmonic analysis of the steady-state coherent pulse-stacking process in a high-Q Fabry-Perot cavity. The expression for the stacked pulse shape is obtained as a function of both the laser cavity and pulse-stacking cavity parameters. We have also estimated the pulse power gains attainable in the laser-optical system of NESTOR storage ring, which is under development at Kharkov Institute of Physics and Technology. It is shown that high power gains (~10⁴) can be, in principle, achieved in a cavity, formed with low-absorption, high reflectivity (R ~ 0.9999) mirrors, if the laser cavity length will differ exactly by half wavelength from the pulse-stacking cavity length. It implies development of the sophisticated frequency stabilization loop for maintaining the cavity length constant within a sub-nanometer range. At the same time, power gains of ~10³ can be obtained with medium reflectivity mirrors (R ~ 0.999) at considerably lower cost.